Résumé :
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[BDSP. Notice produite par INIST-CNRS vJRPR0xh. Diffusion soumise à autorisation]. Context Small-area variations in surgical rates raise concerns about access to care, treatment appropriateness, and the quality and cost of care. Objective To measure small-area variations in rates of myringotomy with insertion of tympanostomy tubes (TTs) and to identify determinants of rate variation. Design and Setting Retrospective analyses using hospital discharge data for patients who had undergone a myringotomy with insertion of TT by county in Ontario between April 1,1996, and March 31,1999. Information on possible determinants was taken from a survey of otolaryngologists and primary care physicians in 1996 and from the 1996 Canadian census and physician demographic databases for 1996-1999. Participants A total of 75358 hospitalizations for TT placement of children and adolescents (aged
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